Results for: "String#[]"

Gem::DependencyList is used for installing and uninstalling gems in the correct order to avoid conflicts.

Raised when attempting to uninstall a gem that isn’t in GEM_HOME.

Potentially raised when a specification is validated.

Raised by Gem::Validator when something is not right in a gem.

Raised to indicate that a system exit should occur with the specified exit_code

Top level class for building the gem repository index.

A RequestSet groups a request to activate a set of dependencies.

nokogiri = Gem::Dependency.new 'nokogiri', '~> 1.6'
pg = Gem::Dependency.new 'pg', '~> 0.14'

set = Gem::RequestSet.new nokogiri, pg

requests = set.resolve

p requests.map { |r| r.full_name }
#=> ["nokogiri-1.6.0", "mini_portile-0.5.1", "pg-0.17.0"]

The SourceList represents the sources rubygems has been configured to use. A source may be created from an array of sources:

Gem::SourceList.from %w[https://rubygems.example https://internal.example]

Or by adding them:

sources = Gem::SourceList.new
sources << 'https://rubygems.example'

The most common way to get a SourceList is Gem.sources.

Gem::StubSpecification reads the stub: line from the gemspec. This prevents us having to eval the entire gemspec in order to find out certain information.

RubyGemTestCase provides a variety of methods for testing rubygems and gem-related behavior in a sandbox. Through RubyGemTestCase you can install and uninstall gems, fetch remote gems through a stub fetcher and be assured your normal set of gems is not affected.

Tests are always run at a safe level of 1.

The UriFormatter handles URIs from user-input and escaping.

uf = Gem::UriFormatter.new 'example.com'

p uf.normalize #=> 'http://example.com'

Not a URI component.

URI is valid, bad usage is not.

Base class for all URI classes. Implements generic URI syntax as per RFC 2396.

An HTTP request. This is consumed by service and do_* methods in WEBrick servlets

Base TCP server class. You must subclass GenericServer and provide a run method.

YAML::Store provides the same functionality as PStore, except it uses YAML to dump objects instead of Marshal.

Example

require 'yaml/store'

Person = Struct.new :first_name, :last_name

people = [Person.new("Bob", "Smith"), Person.new("Mary", "Johnson")]

store = YAML::Store.new "test.store"

store.transaction do
  store["people"] = people
  store["greeting"] = { "hello" => "world" }
end

After running the above code, the contents of “test.store” will be:

---
people:
- !ruby/struct:Person
  first_name: Bob
  last_name: Smith
- !ruby/struct:Person
  first_name: Mary
  last_name: Johnson
greeting:
  hello: world

Raised when a mathematical function is evaluated outside of its domain of definition.

For example, since cos returns values in the range -1..1, its inverse function acos is only defined on that interval:

Math.acos(42)

produces:

Math::DomainError: Numerical argument is out of domain - "acos"